Oil-pump motor.



PATENTED MAY 22 W. S. SHERMAN.

OIL PUMP MOTOR.

APPLICATION FILED FEB.20,1904.

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UNITED PATENT @I EIGEQ WILLIS S. SHERMAN, OE MILWAUKEE, WISCQNSIN, ASSIGNOE TU SIGHT FEED OIL PUMP COMPANY, OF MILWAUKEE, WISCQNSIN, A GO EP- EATIUN OF WISCONSIN.

QILQEUWIP WIQTQE IU Specification of Letters Patent.

reatented. May 22, 1.906,

To all whom it may concern:

Be it known that I, WILLIs S. SHERMAN,-

residing in Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented a new and useful Improvement in UillPump Motors, of which the following is a description, reference being had to the accompanying drawing, which is a part of this specification.

This invention relates particularly to certain new and useful improvements in ,oilpump motors, but broadly covers improvements in motors for any purpose, and has for its object to provide operating means having movable support from a moving body and capable of imparting motion to an operated means by reason of the difference in the effect produced by the movements of the body on the support and on the operating means, such difference in effect being due to the inertia of the operating means.

Another object of this invention is to provide a moving body carrying an actuating means mounted to be movable with relation to the moving body and means connecting the body and the said actuating means adapted to receive motion as the result of the inertia of the actuating means during the movements of the body.

Another object of this invention is to provide a machine, oil-feed pump, or the like with an automatic operating means adapted to impart motion to such oil-feed pump or similar device during the movements of the machine only and receiving its impulse from such movements of the machine.

A further object of this invention is to accomplish the above results by means of a movable weight the inertia of which renders it less susceptible to the influence of the movements of the machine than its support and the difference in the effects produced by such movements on the weight and on its support being utilized to operate the pump,

Another object of this invention is to vary the degree of effect produced by the motor, as by rendering the weight adjustable upon its lever-arm to increase or diminish the extent of movement thereof, and, again, by providing adjustable stops to limit the movements of the lever-arm.

With the above primary and other incidental objects in view the invention consists of the devices and parts and their equivalents, as hereinafter set forth.

In the accompanying drawing the figure represents a side elevation of an oil-pump motor embodying the principles of this invention and applied to a sight-feed oil-pump, such as is shown and described in Letters Patent to Wilber E. Richardson, No. 661,323, dated November 6, 1.900.

In the drawing, 1 represents the oil-pump, which may be of any desirable type and which is bolted or otherwise rigidly secured to a supporting means 2, such as the cab of a locomotive or any other body, preferably receiving motion from the mechanism supplied with oil by the pump, and 3 is the shaft of said oil-pump, which is capable of operating the pump mechanism when *iven slight oscillations. A sleeve 4 is fixed on the shaft 3 and held rigid therewith by means of the nut 5, threaded on said shaft, and preferably binding the sleeve upon a shouldered squared portion of the shaft. A socket 6 is provided on said sleeve, in which a lever-arm 7 is secured in any suitable manner.

A weight, preferably a ball of solid metal with a central bore therethrough having a sliding fit upon the lever-arm 7, is adjustably mounted on the lever-arm 7 and held in its adjusted position by a set-screw 9, threaded through a collar 10, which is formed with or attached to the ball-weight 8, said set-screw being adapted to engage the lever-arm 7.

(In each side of the socket 6 is rigidly mounted a leaf-spring 11, secured thereto in any suitable manner, such as by screws 12, and these leaf-springs extend upwardly and curve outwardly and their ends are slightly turned back and are adapted to engage with the inner ends of set-screws l3, threaded through the opposite laterally-extending lugs 14: of a bracket 15, which is bolted to the top of the pump 1 or'rigidly mounted in any other desirable manner. The projecting lugs 14 0f the bracket 15 stand in the path of the lever-arm 7 and are only prevented from being engaged by said lever-arm by reason of the engagement of the yielding cushioning springs 11, engaging with the set-screws 13, which are bound in their adjustments by jam-nuts 16, turned against the outside of the lugs 14.

In operation while the supporting means 2 is making quick horizontal motions, such as are common with a locomotive-cab when under way, the inertia of the ball-weight 8 tends to prevent its participating in such movements, and 'as the pump and therefore the shaft 3 take the movement of the support the result is that said weight is caused to oscillate with respect to its support. When the weight is in either of its extreme positions-as, for instance, the position shown in.

the drawing.and the movable sup ort 2 is given a quick motionsay to the eftthe tendency of the ball-weight 8 to remain in the position shown causes the shaft 3 to pass therebeneath, so that the center of gravity of the weight is then on the other side of the vertical plane of the shaft 3 to that as shown, when gravity will cause said weight to swing forcibly to the right and engage the ri hthand spring 1 1 with the set-screw 13, unti the said spring is bent to a considerable extent. When the compression of the spring 1 1 stops the swing of the ball-Wei ht, it exerts its pressure to return the ba l-weight 8 'to its original position, and if it succeeds in carrying it beyond the vertical plane of the shaft 3 the motion is continued on the other side of the vertical plane of shaft 3 and the same action takes place with the other spring 11. The springs 11 serve the double purpose of limiting the swing of the Wei ht 8 and also causing it to rebound and aidt 1 e movements of the support in keeping up the motions of the weight, so as to continue the operation of the pump as long as the motions of the support continue. When it is found that the motions of the support 2 are not suflicient to .carry the weight over the vertical plane of the shaft 3, and conse uently the pum ing operation is not proper y effected, the allweight 8 is lowered upon the leverarm 7, so that it has less distance to travel in reaching said vertical lane of the shaft 3, and consequently the s i ht movements of the support 2 which were ormerly insuflicient to carry the weight the re uired distance are now capable of success ul operation. Furthermore, the degree of swing of the lever-arm 7 may be varied to some extent by the adjustment of the set-screws 13 to effect this result; but the prime object of these set-screws is to equalize the conditions on both sides of the lever-arm 7 as much as possible, so that no greater influence is necessary to move the weight in one direction than is capable of moving it in the opposite direction.

The device, as above described, is preferably arranged in a locomotive-cab in such a manner as to have the plane of movement of the lever-arm 7 transverse of the direction of travel of the locomotive, so that the lateral motions of the cab will effect the operation of the motor.

It is obvious that satisfactory results may be accomplished by inverting the lever-arm 7, so that the weight 8 hangs below the shaft 3, and in such construction the s rings and stops may or may not be dispense with.

While the part 2 has been referred to herein as the movable support, it is obvious that the pump 1, which is intended to have a rigid connection therewith, and so partake of the movements thereof, may be considered as a movable support, and it is with the understanding that this term movable support is sufficiently broad to cover an body or support capable of movement or esigned to receive movement that such term is employed in the following claims. Such term is not intended to render the combinations incomplete without the presence of a moving engine-cab or other body by which the parts may be carried.

What I claim as my invention is 1. A movable support, a lever-arm suitably pivoted thereto, a weight on the lever-arm, springs carried by the lever-arm, a bracket rigidly connected with the support and having laterally-extendin lugs, and set-screws threaded throu h the Tugs with binding-nuts to lock them in t eir adjustments, said springs being adapted to engage the set-screws to cushion the movements of the lever-arm.

2. A movable sup rt, a shaft 'ournaled thereon, an upward y-extending lever-arm carried by the shaft, a weight on the leverarm, a bracket rigidly connected with the support, laterally-projecting lugs on the bracket, set-screws with binding-nuts threaded through the nuts, and leaf-springs secured to the lever-arm and ada ted to engage the set-scr'ews to cushion the swing of the lever-arm and start its return movement.

3. In combination with an oil-pump having an oscillating shaft, a sleeve secured on the shaft, a lever-arm mounted in the sleeve and extending upwardly, a weight adjustably mounted on'the lever-arm so as to be movable nearer to or farther from the shaft, leaf-springs mounted on the sleeve and bending away from the lever-arm, a bracket rigidly mounted on the pump and having arms standing in the path of movement of the lein the path of movement of the lever-arm, yer-arm, and set-screws adjustably threaded and set-screws adjustably threaded through in the arms of the bracket to be engaged b said arms adapted to vary the are of movethe leaf-springs and having jam-nuts threa ment of the weight. 5 ed thereon to hold them in their adjustments. In testimony whereof I afiix my signature I 5 4:. In combination with an oil-pump havin presence of two witnesses. ing an oscillating shaft, a lever-arm secured WILLIS S. SHERMAN. to the shaft and extending upwardly, a Witnesses: weight mounted on the lever-arm, a bracket R. S. C. CALDWELL, 10 secured to the pump with outstanding arms ANNA F. SOHMIDTBAUER. 

